Saving is actually good for the people who are not rich and are not earning a lot of money every month or everyday because if someone earns a lot he does not need to save anything because he will always have extra money, but the ones who earn a little that can only run their house for the day then they should just a small percent of it.
Even if you are only earning a small amount, you should prioritize saving. Savings is your stepping stone for future success. If you do not save and you spend all your money, then you cannot invest. Save small amounts of money every payday. Then if you receive more, save more. If you save enough, open an investment. Your investment will make way so you will be financially free in the future.